Would suggest getting a dtrace of StorageOnlineOpns and opening a call with symantec.
You may end up just determining the archive thats causing the problem, exporting it, deleting the archive, recreating it and re-importing the PST

JesusWept3 poited me to this topic, as i seem to have a similar problem. I'm thinking about opening another case in order to give some weight to this, as it seems many people are having such problems... Here's a link to my topic - https://www-secure.symantec.com/connect/forums/many-events-id-8453-6469-and-13360-ev-904.

Ronen, could you perhaps provide the ID of your case so I can mention it in mine? After I create it, I will put it here so that we know what happens.

JesusWept3 poited me to this topic, as i seem to have a similar problem. I'm thinking about opening another case in order to give some weight to this, as it seems many people are having such problems...

Ronen,

perhaps you can provide your case ID so I can mention it in mine, so that Support guys will know that this is a serious problem for lots of folks.

Not from my camp. My support are recommending that this is because of one user who has null characters in some of their folders, but I can't change anything without the consent of the customer who I cannot get hold of :(